71916 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71916 CE/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.62 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
110 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8348 lbf
Radial static load rating
7988 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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71916 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 71916 CE/HCP4ADGA is a precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. Operating as a universal matchable (SU) bearing, it is designed to be mounted in pairs to form a rigid, preloaded set capable of withstanding combined loads—significant radial and axial loads in both directions. Its construction with ceramic balls and a P4A super-precision tolerance class ensures low vibration, high running accuracy, and superior high-speed capabilities, making it ideal for high-reliability, high-rigidity applications.
71916 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series and size designation (80mm bore, 110mm OD, 32mm width). |
| CE | Indicates a 15° contact angle, optimized for high-speed operation and radial load capacity. |
| HC | Refers to the Hybrid Ceramic construction, featuring steel rings and ceramic balls for reduced weight, lower friction, and enhanced speed performance. |
| P4A | Denotes a super-precision tolerance class with enhanced running accuracy and dimensional stability beyond standard P4 levels. |
| DGA | Signifies a Universal Matchable (SU) arrangement. Two bearings are supplied as a matched set with a pre-determined preload (Extra light / Class A) for immediate installation without further adjustment. |
71916 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and universal matching enable the bearing pair to provide a rigid support system, effectively handling combined radial and axial loads from both directions.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage, hybrid ceramic balls (silicon nitride), and a 15° contact angle significantly reduces centrifugal forces and operating temperatures, allowing for a high limiting speed of 28,000 rpm.
- Enhanced Precision and Longevity: The P4A tolerance class ensures minimal runout and vibration for exceptional positioning accuracy. Ceramic balls are electrically resistant, harder, and more wear-resistant than steel, leading to a longer service life, especially in demanding conditions.
- Pre-Optimized Application: As a preloaded matched set, this bearing eliminates the need for complex preload adjustments during installation, ensuring consistent, optimal performance from the start and simplifying the assembly process.
71916 CE/HCP4ADGA Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for advanced machinery requiring high speed, rigidity, and accuracy. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors and Spindles: Motors for CNC machinery and PCB drilling.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and other precision instrumentation.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
